def test_unit_vector():
r""" Test for the Unit Vector Function
"""
vector = [1, 1, 1]
actual_out = RV2COE.unit_vector(vector)
expected_out = [1 / np.sqrt(3), 1 / np.sqrt(3), 1 / np.sqrt(3)]
np.testing.assert_allclose(actual_out, expected_out)
r_k = float(line[2])
v_i = float(line[3])
v_j = float(line[4])
v_k = float(line[5])
r_input = [r_i, r_j, r_k]
v_input = [v_i, v_j, v_k]
Line_1 = ("The mu Constant: \n\t", str(mu), "\n", 'Radius {} (km)\n\t{}\n'.format(count+1,r_input))
Line_2 = ('Velocity {} (km/s)\n\t{}\n'.format(count+1,v_input))
r"""Inner Workings, Pulling outside functions"""
h_input = RV2COE.ang_momentum(r_input, v_input)
e_vector = RV2COE.eccentricity(mu, r_input, v_input, h_input)
n_vector = RV2COE.line_of_nodes(RV2COE.unit_vector(h_input))
p = RV2COE.semi_latus_rectum(mu, h_input)
theta = RV2COE.true_anom(r_input, h_input, e_vector)
i = RV2COE.inclination(RV2COE.unit_vector(h_input))
a = RV2COE.semi_major_axis(p, np.linalg.norm(e_vector))
raan = RV2COE.R_A_A_N(n_vector)
w = RV2COE.arg_of_periapsis(n_vector, e_vector, h_input)
r_p = RV2COE.rad_peri(p, np.linalg.norm(e_vector))